52467047aa
Use recent best practices for Copyright form at the top of the license: 1. Remove all the All Rights Reserved clauses on our stuff. Where we piggybacked others, use a separate line to make things clear. 2. Use "Netflix, Inc." everywhere. 3. Use a single line for the copyright for grep friendliness. 4. Use date ranges in all places for our stuff. Approved by: Netflix Legal (who gave me the form), adrian@ (pmc files)
1004 lines
29 KiB
C
1004 lines
29 KiB
C
/*
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* Copyright (c) 2015 Netflix, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <stand.h>
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#include <string.h>
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#include <efi.h>
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#include <efichar.h>
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#include <efilib.h>
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#include <efigpt.h> /* Partition GUIDS */
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#include <Guid/MemoryTypeInformation.h>
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#include <Guid/MtcVendor.h>
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#include <Guid/ZeroGuid.h>
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#include <Protocol/EdidActive.h>
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#include <Protocol/EdidDiscovered.h>
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#include <uuid.h>
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#include <stdbool.h>
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#include <sys/param.h>
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#include "bootstrap.h"
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/*
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* About ENABLE_UPDATES
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*
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* The UEFI variables are identified only by GUID and name, there is no
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* way to (auto)detect the type for the value, so we need to process the
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* variables case by case, as we do learn about them.
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*
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* While showing the variable name and the value is safe, we must not store
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* random values nor allow removing (random) variables.
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*
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* Since we do have stub code to set/unset the variables, I do want to keep
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* it to make the future development a bit easier, but the updates are disabled
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* by default till:
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* a) the validation and data translation to values is properly implemented
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* b) We have established which variables we do allow to be updated.
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* Therefore the set/unset code is included only for developers aid.
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*/
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static struct efi_uuid_mapping {
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const char *efi_guid_name;
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EFI_GUID efi_guid;
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} efi_uuid_mapping[] = {
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{ .efi_guid_name = "global", .efi_guid = EFI_GLOBAL_VARIABLE },
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{ .efi_guid_name = "freebsd", .efi_guid = FREEBSD_BOOT_VAR_GUID },
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/* EFI Systab entry names. */
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{ .efi_guid_name = "MPS Table", .efi_guid = MPS_TABLE_GUID },
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{ .efi_guid_name = "ACPI Table", .efi_guid = ACPI_TABLE_GUID },
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{ .efi_guid_name = "ACPI 2.0 Table", .efi_guid = ACPI_20_TABLE_GUID },
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{ .efi_guid_name = "SMBIOS Table", .efi_guid = SMBIOS_TABLE_GUID },
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{ .efi_guid_name = "SMBIOS3 Table", .efi_guid = SMBIOS3_TABLE_GUID },
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{ .efi_guid_name = "DXE Table", .efi_guid = DXE_SERVICES_TABLE_GUID },
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{ .efi_guid_name = "HOB List Table", .efi_guid = HOB_LIST_TABLE_GUID },
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{ .efi_guid_name = EFI_MEMORY_TYPE_INFORMATION_VARIABLE_NAME,
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.efi_guid = EFI_MEMORY_TYPE_INFORMATION_GUID },
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{ .efi_guid_name = "Debug Image Info Table",
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.efi_guid = DEBUG_IMAGE_INFO_TABLE_GUID },
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{ .efi_guid_name = "FDT Table", .efi_guid = FDT_TABLE_GUID },
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/*
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* Protocol names for debug purposes.
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* Can be removed along with lsefi command.
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*/
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{ .efi_guid_name = "device path", .efi_guid = DEVICE_PATH_PROTOCOL },
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{ .efi_guid_name = "block io", .efi_guid = BLOCK_IO_PROTOCOL },
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{ .efi_guid_name = "disk io", .efi_guid = DISK_IO_PROTOCOL },
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{ .efi_guid_name = "disk info", .efi_guid =
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EFI_DISK_INFO_PROTOCOL_GUID },
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{ .efi_guid_name = "simple fs",
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.efi_guid = SIMPLE_FILE_SYSTEM_PROTOCOL },
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{ .efi_guid_name = "load file", .efi_guid = LOAD_FILE_PROTOCOL },
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{ .efi_guid_name = "device io", .efi_guid = DEVICE_IO_PROTOCOL },
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{ .efi_guid_name = "unicode collation",
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.efi_guid = UNICODE_COLLATION_PROTOCOL },
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{ .efi_guid_name = "unicode collation2",
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.efi_guid = EFI_UNICODE_COLLATION2_PROTOCOL_GUID },
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{ .efi_guid_name = "simple network",
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.efi_guid = EFI_SIMPLE_NETWORK_PROTOCOL },
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{ .efi_guid_name = "simple text output",
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.efi_guid = SIMPLE_TEXT_OUTPUT_PROTOCOL },
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{ .efi_guid_name = "simple text input",
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.efi_guid = SIMPLE_TEXT_INPUT_PROTOCOL },
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{ .efi_guid_name = "simple text ex input",
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.efi_guid = EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL_GUID },
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{ .efi_guid_name = "console control",
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.efi_guid = EFI_CONSOLE_CONTROL_PROTOCOL_GUID },
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{ .efi_guid_name = "stdin", .efi_guid = EFI_CONSOLE_IN_DEVICE_GUID },
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{ .efi_guid_name = "stdout", .efi_guid = EFI_CONSOLE_OUT_DEVICE_GUID },
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{ .efi_guid_name = "stderr",
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.efi_guid = EFI_STANDARD_ERROR_DEVICE_GUID },
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{ .efi_guid_name = "GOP",
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.efi_guid = EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID },
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{ .efi_guid_name = "UGA draw", .efi_guid = EFI_UGA_DRAW_PROTOCOL_GUID },
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{ .efi_guid_name = "PXE base code",
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.efi_guid = EFI_PXE_BASE_CODE_PROTOCOL },
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{ .efi_guid_name = "PXE base code callback",
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.efi_guid = EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL },
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{ .efi_guid_name = "serial io", .efi_guid = SERIAL_IO_PROTOCOL },
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{ .efi_guid_name = "loaded image", .efi_guid = LOADED_IMAGE_PROTOCOL },
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{ .efi_guid_name = "loaded image device path",
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.efi_guid = EFI_LOADED_IMAGE_DEVICE_PATH_PROTOCOL_GUID },
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{ .efi_guid_name = "ISA io", .efi_guid = EFI_ISA_IO_PROTOCOL_GUID },
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{ .efi_guid_name = "IDE controller init",
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.efi_guid = EFI_IDE_CONTROLLER_INIT_PROTOCOL_GUID },
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{ .efi_guid_name = "ISA ACPI", .efi_guid = EFI_ISA_ACPI_PROTOCOL_GUID },
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{ .efi_guid_name = "PCI", .efi_guid = EFI_PCI_IO_PROTOCOL_GUID },
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{ .efi_guid_name = "PCI root", .efi_guid = EFI_PCI_ROOT_IO_GUID },
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{ .efi_guid_name = "PCI enumeration",
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.efi_guid = EFI_PCI_ENUMERATION_COMPLETE_GUID },
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{ .efi_guid_name = "Driver diagnostics",
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.efi_guid = EFI_DRIVER_DIAGNOSTICS_PROTOCOL_GUID },
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{ .efi_guid_name = "Driver diagnostics2",
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.efi_guid = EFI_DRIVER_DIAGNOSTICS2_PROTOCOL_GUID },
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{ .efi_guid_name = "simple pointer",
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.efi_guid = EFI_SIMPLE_POINTER_PROTOCOL_GUID },
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{ .efi_guid_name = "absolute pointer",
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.efi_guid = EFI_ABSOLUTE_POINTER_PROTOCOL_GUID },
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{ .efi_guid_name = "VLAN config",
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.efi_guid = EFI_VLAN_CONFIG_PROTOCOL_GUID },
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{ .efi_guid_name = "ARP service binding",
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.efi_guid = EFI_ARP_SERVICE_BINDING_PROTOCOL_GUID },
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{ .efi_guid_name = "ARP", .efi_guid = EFI_ARP_PROTOCOL_GUID },
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{ .efi_guid_name = "IPv4 service binding",
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.efi_guid = EFI_IP4_SERVICE_BINDING_PROTOCOL },
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{ .efi_guid_name = "IPv4", .efi_guid = EFI_IP4_PROTOCOL },
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{ .efi_guid_name = "IPv4 config",
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.efi_guid = EFI_IP4_CONFIG_PROTOCOL_GUID },
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{ .efi_guid_name = "IPv6 service binding",
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.efi_guid = EFI_IP6_SERVICE_BINDING_PROTOCOL },
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{ .efi_guid_name = "IPv6", .efi_guid = EFI_IP6_PROTOCOL },
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{ .efi_guid_name = "IPv6 config",
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.efi_guid = EFI_IP6_CONFIG_PROTOCOL_GUID },
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{ .efi_guid_name = "UDPv4", .efi_guid = EFI_UDP4_PROTOCOL },
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{ .efi_guid_name = "UDPv4 service binding",
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.efi_guid = EFI_UDP4_SERVICE_BINDING_PROTOCOL },
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{ .efi_guid_name = "UDPv6", .efi_guid = EFI_UDP6_PROTOCOL },
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{ .efi_guid_name = "UDPv6 service binding",
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.efi_guid = EFI_UDP6_SERVICE_BINDING_PROTOCOL },
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{ .efi_guid_name = "TCPv4", .efi_guid = EFI_TCP4_PROTOCOL },
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{ .efi_guid_name = "TCPv4 service binding",
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.efi_guid = EFI_TCP4_SERVICE_BINDING_PROTOCOL },
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{ .efi_guid_name = "TCPv6", .efi_guid = EFI_TCP6_PROTOCOL },
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{ .efi_guid_name = "TCPv6 service binding",
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.efi_guid = EFI_TCP6_SERVICE_BINDING_PROTOCOL },
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{ .efi_guid_name = "EFI System partition",
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.efi_guid = EFI_PART_TYPE_EFI_SYSTEM_PART_GUID },
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{ .efi_guid_name = "MBR legacy",
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.efi_guid = EFI_PART_TYPE_LEGACY_MBR_GUID },
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{ .efi_guid_name = "device tree", .efi_guid = EFI_DEVICE_TREE_GUID },
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{ .efi_guid_name = "USB io", .efi_guid = EFI_USB_IO_PROTOCOL_GUID },
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{ .efi_guid_name = "USB2 HC", .efi_guid = EFI_USB2_HC_PROTOCOL_GUID },
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{ .efi_guid_name = "component name",
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.efi_guid = EFI_COMPONENT_NAME_PROTOCOL_GUID },
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{ .efi_guid_name = "component name2",
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.efi_guid = EFI_COMPONENT_NAME2_PROTOCOL_GUID },
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{ .efi_guid_name = "driver binding",
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.efi_guid = EFI_DRIVER_BINDING_PROTOCOL_GUID },
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{ .efi_guid_name = "driver configuration",
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.efi_guid = EFI_DRIVER_CONFIGURATION_PROTOCOL_GUID },
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{ .efi_guid_name = "driver configuration2",
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.efi_guid = EFI_DRIVER_CONFIGURATION2_PROTOCOL_GUID },
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{ .efi_guid_name = "decompress",
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.efi_guid = EFI_DECOMPRESS_PROTOCOL_GUID },
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{ .efi_guid_name = "ebc interpreter",
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.efi_guid = EFI_EBC_INTERPRETER_PROTOCOL_GUID },
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{ .efi_guid_name = "network interface identifier",
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.efi_guid = EFI_NETWORK_INTERFACE_IDENTIFIER_PROTOCOL },
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{ .efi_guid_name = "network interface identifier_31",
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.efi_guid = EFI_NETWORK_INTERFACE_IDENTIFIER_PROTOCOL_31 },
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{ .efi_guid_name = "managed network service binding",
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.efi_guid = EFI_MANAGED_NETWORK_SERVICE_BINDING_PROTOCOL_GUID },
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{ .efi_guid_name = "managed network",
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.efi_guid = EFI_MANAGED_NETWORK_PROTOCOL_GUID },
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{ .efi_guid_name = "form browser",
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.efi_guid = EFI_FORM_BROWSER2_PROTOCOL_GUID },
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{ .efi_guid_name = "HII config routing",
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.efi_guid = EFI_HII_CONFIG_ROUTING_PROTOCOL_GUID },
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{ .efi_guid_name = "HII database",
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.efi_guid = EFI_HII_DATABASE_PROTOCOL_GUID },
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{ .efi_guid_name = "HII string",
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.efi_guid = EFI_HII_STRING_PROTOCOL_GUID },
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{ .efi_guid_name = "HII image",
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.efi_guid = EFI_HII_IMAGE_PROTOCOL_GUID },
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{ .efi_guid_name = "HII font", .efi_guid = EFI_HII_FONT_PROTOCOL_GUID },
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{ .efi_guid_name = "HII config",
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.efi_guid = EFI_HII_CONFIGURATION_ACCESS_PROTOCOL_GUID },
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{ .efi_guid_name = "MTFTP4 service binding",
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.efi_guid = EFI_MTFTP4_SERVICE_BINDING_PROTOCOL_GUID },
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{ .efi_guid_name = "MTFTP4", .efi_guid = EFI_MTFTP4_PROTOCOL_GUID },
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{ .efi_guid_name = "MTFTP6 service binding",
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.efi_guid = EFI_MTFTP6_SERVICE_BINDING_PROTOCOL_GUID },
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{ .efi_guid_name = "MTFTP6", .efi_guid = EFI_MTFTP6_PROTOCOL_GUID },
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{ .efi_guid_name = "DHCP4 service binding",
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.efi_guid = EFI_DHCP4_SERVICE_BINDING_PROTOCOL_GUID },
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{ .efi_guid_name = "DHCP4", .efi_guid = EFI_DHCP4_PROTOCOL_GUID },
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{ .efi_guid_name = "DHCP6 service binding",
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.efi_guid = EFI_DHCP6_SERVICE_BINDING_PROTOCOL_GUID },
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{ .efi_guid_name = "DHCP6", .efi_guid = EFI_DHCP6_PROTOCOL_GUID },
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{ .efi_guid_name = "SCSI io", .efi_guid = EFI_SCSI_IO_PROTOCOL_GUID },
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{ .efi_guid_name = "SCSI pass thru",
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.efi_guid = EFI_SCSI_PASS_THRU_PROTOCOL_GUID },
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{ .efi_guid_name = "SCSI pass thru ext",
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.efi_guid = EFI_EXT_SCSI_PASS_THRU_PROTOCOL_GUID },
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{ .efi_guid_name = "Capsule arch",
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.efi_guid = EFI_CAPSULE_ARCH_PROTOCOL_GUID },
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{ .efi_guid_name = "monotonic counter arch",
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.efi_guid = EFI_MONOTONIC_COUNTER_ARCH_PROTOCOL_GUID },
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{ .efi_guid_name = "realtime clock arch",
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.efi_guid = EFI_REALTIME_CLOCK_ARCH_PROTOCOL_GUID },
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{ .efi_guid_name = "variable arch",
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.efi_guid = EFI_VARIABLE_ARCH_PROTOCOL_GUID },
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{ .efi_guid_name = "variable write arch",
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.efi_guid = EFI_VARIABLE_WRITE_ARCH_PROTOCOL_GUID },
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{ .efi_guid_name = "watchdog timer arch",
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.efi_guid = EFI_WATCHDOG_TIMER_ARCH_PROTOCOL_GUID },
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{ .efi_guid_name = "ACPI support",
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.efi_guid = EFI_ACPI_SUPPORT_PROTOCOL_GUID },
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{ .efi_guid_name = "BDS arch", .efi_guid = EFI_BDS_ARCH_PROTOCOL_GUID },
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{ .efi_guid_name = "metronome arch",
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.efi_guid = EFI_METRONOME_ARCH_PROTOCOL_GUID },
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{ .efi_guid_name = "timer arch",
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.efi_guid = EFI_TIMER_ARCH_PROTOCOL_GUID },
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{ .efi_guid_name = "DPC", .efi_guid = EFI_DPC_PROTOCOL_GUID },
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{ .efi_guid_name = "print2", .efi_guid = EFI_PRINT2_PROTOCOL_GUID },
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{ .efi_guid_name = "device path to text",
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.efi_guid = EFI_DEVICE_PATH_TO_TEXT_PROTOCOL_GUID },
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{ .efi_guid_name = "reset arch",
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.efi_guid = EFI_RESET_ARCH_PROTOCOL_GUID },
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{ .efi_guid_name = "CPU arch", .efi_guid = EFI_CPU_ARCH_PROTOCOL_GUID },
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{ .efi_guid_name = "CPU IO2", .efi_guid = EFI_CPU_IO2_PROTOCOL_GUID },
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{ .efi_guid_name = "Legacy 8259",
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.efi_guid = EFI_LEGACY_8259_PROTOCOL_GUID },
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{ .efi_guid_name = "Security arch",
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.efi_guid = EFI_SECURITY_ARCH_PROTOCOL_GUID },
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{ .efi_guid_name = "Security2 arch",
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.efi_guid = EFI_SECURITY2_ARCH_PROTOCOL_GUID },
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{ .efi_guid_name = "Runtime arch",
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.efi_guid = EFI_RUNTIME_ARCH_PROTOCOL_GUID },
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{ .efi_guid_name = "status code runtime",
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.efi_guid = EFI_STATUS_CODE_RUNTIME_PROTOCOL_GUID },
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{ .efi_guid_name = "data hub", .efi_guid = EFI_DATA_HUB_PROTOCOL_GUID },
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{ .efi_guid_name = "PCD", .efi_guid = PCD_PROTOCOL_GUID },
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{ .efi_guid_name = "EFI PCD", .efi_guid = EFI_PCD_PROTOCOL_GUID },
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{ .efi_guid_name = "firmware volume block",
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.efi_guid = EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL_GUID },
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{ .efi_guid_name = "firmware volume2",
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.efi_guid = EFI_FIRMWARE_VOLUME2_PROTOCOL_GUID },
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{ .efi_guid_name = "firmware volume dispatch",
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.efi_guid = EFI_FIRMWARE_VOLUME_DISPATCH_PROTOCOL_GUID },
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{ .efi_guid_name = "lzma compress", .efi_guid = LZMA_COMPRESS_GUID },
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{ .efi_guid_name = "MP services",
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.efi_guid = EFI_MP_SERVICES_PROTOCOL_GUID },
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{ .efi_guid_name = MTC_VARIABLE_NAME, .efi_guid = MTC_VENDOR_GUID },
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{ .efi_guid_name = "RTC", .efi_guid = { 0x378D7B65, 0x8DA9, 0x4773,
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{ 0xB6, 0xE4, 0xA4, 0x78, 0x26, 0xA8, 0x33, 0xE1} } },
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{ .efi_guid_name = "Active EDID",
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.efi_guid = EFI_EDID_ACTIVE_PROTOCOL_GUID },
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{ .efi_guid_name = "Discovered EDID",
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.efi_guid = EFI_EDID_DISCOVERED_PROTOCOL_GUID }
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};
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bool
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efi_guid_to_str(const EFI_GUID *guid, char **sp)
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{
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uint32_t status;
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uuid_to_string((const uuid_t *)guid, sp, &status);
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return (status == uuid_s_ok ? true : false);
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}
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bool
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efi_str_to_guid(const char *s, EFI_GUID *guid)
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{
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uint32_t status;
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uuid_from_string(s, (uuid_t *)guid, &status);
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return (status == uuid_s_ok ? true : false);
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}
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bool
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efi_name_to_guid(const char *name, EFI_GUID *guid)
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{
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uint32_t i;
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for (i = 0; i < nitems(efi_uuid_mapping); i++) {
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if (strcasecmp(name, efi_uuid_mapping[i].efi_guid_name) == 0) {
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*guid = efi_uuid_mapping[i].efi_guid;
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return (true);
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}
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}
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return (efi_str_to_guid(name, guid));
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}
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bool
|
|
efi_guid_to_name(EFI_GUID *guid, char **name)
|
|
{
|
|
uint32_t i;
|
|
int rv;
|
|
|
|
for (i = 0; i < nitems(efi_uuid_mapping); i++) {
|
|
rv = uuid_equal((uuid_t *)guid,
|
|
(uuid_t *)&efi_uuid_mapping[i].efi_guid, NULL);
|
|
if (rv != 0) {
|
|
*name = strdup(efi_uuid_mapping[i].efi_guid_name);
|
|
if (*name == NULL)
|
|
return (false);
|
|
return (true);
|
|
}
|
|
}
|
|
return (efi_guid_to_str(guid, name));
|
|
}
|
|
|
|
void
|
|
efi_init_environment(void)
|
|
{
|
|
char var[128];
|
|
|
|
snprintf(var, sizeof(var), "%d.%02d", ST->Hdr.Revision >> 16,
|
|
ST->Hdr.Revision & 0xffff);
|
|
env_setenv("efi-version", EV_VOLATILE, var, env_noset, env_nounset);
|
|
}
|
|
|
|
COMMAND_SET(efishow, "efi-show", "print some or all EFI variables", command_efi_show);
|
|
|
|
static int
|
|
efi_print_other_value(uint8_t *data, UINTN datasz)
|
|
{
|
|
UINTN i;
|
|
bool is_ascii = true;
|
|
|
|
printf(" = ");
|
|
for (i = 0; i < datasz - 1; i++) {
|
|
/*
|
|
* Quick hack to see if this ascii-ish string is printable
|
|
* range plus tab, cr and lf.
|
|
*/
|
|
if ((data[i] < 32 || data[i] > 126)
|
|
&& data[i] != 9 && data[i] != 10 && data[i] != 13) {
|
|
is_ascii = false;
|
|
break;
|
|
}
|
|
}
|
|
if (data[datasz - 1] != '\0')
|
|
is_ascii = false;
|
|
if (is_ascii == true) {
|
|
printf("%s", data);
|
|
if (pager_output("\n"))
|
|
return (CMD_WARN);
|
|
} else {
|
|
if (pager_output("\n"))
|
|
return (CMD_WARN);
|
|
/*
|
|
* Dump hex bytes grouped by 4.
|
|
*/
|
|
for (i = 0; i < datasz; i++) {
|
|
printf("%02x ", data[i]);
|
|
if ((i + 1) % 4 == 0)
|
|
printf(" ");
|
|
if ((i + 1) % 20 == 0) {
|
|
if (pager_output("\n"))
|
|
return (CMD_WARN);
|
|
}
|
|
}
|
|
if (pager_output("\n"))
|
|
return (CMD_WARN);
|
|
}
|
|
|
|
return (CMD_OK);
|
|
}
|
|
|
|
/* This appears to be some sort of UEFI shell alias table. */
|
|
static int
|
|
efi_print_shell_str(const CHAR16 *varnamearg __unused, uint8_t *data,
|
|
UINTN datasz __unused)
|
|
{
|
|
printf(" = %S", (CHAR16 *)data);
|
|
if (pager_output("\n"))
|
|
return (CMD_WARN);
|
|
return (CMD_OK);
|
|
}
|
|
|
|
const char *
|
|
efi_memory_type(EFI_MEMORY_TYPE type)
|
|
{
|
|
const char *types[] = {
|
|
"Reserved",
|
|
"LoaderCode",
|
|
"LoaderData",
|
|
"BootServicesCode",
|
|
"BootServicesData",
|
|
"RuntimeServicesCode",
|
|
"RuntimeServicesData",
|
|
"ConventionalMemory",
|
|
"UnusableMemory",
|
|
"ACPIReclaimMemory",
|
|
"ACPIMemoryNVS",
|
|
"MemoryMappedIO",
|
|
"MemoryMappedIOPortSpace",
|
|
"PalCode",
|
|
"PersistentMemory"
|
|
};
|
|
|
|
switch (type) {
|
|
case EfiReservedMemoryType:
|
|
case EfiLoaderCode:
|
|
case EfiLoaderData:
|
|
case EfiBootServicesCode:
|
|
case EfiBootServicesData:
|
|
case EfiRuntimeServicesCode:
|
|
case EfiRuntimeServicesData:
|
|
case EfiConventionalMemory:
|
|
case EfiUnusableMemory:
|
|
case EfiACPIReclaimMemory:
|
|
case EfiACPIMemoryNVS:
|
|
case EfiMemoryMappedIO:
|
|
case EfiMemoryMappedIOPortSpace:
|
|
case EfiPalCode:
|
|
case EfiPersistentMemory:
|
|
return (types[type]);
|
|
default:
|
|
return ("Unknown");
|
|
}
|
|
}
|
|
|
|
/* Print memory type table. */
|
|
static int
|
|
efi_print_mem_type(const CHAR16 *varnamearg __unused, uint8_t *data,
|
|
UINTN datasz)
|
|
{
|
|
int i, n;
|
|
EFI_MEMORY_TYPE_INFORMATION *ti;
|
|
|
|
ti = (EFI_MEMORY_TYPE_INFORMATION *)data;
|
|
if (pager_output(" = \n"))
|
|
return (CMD_WARN);
|
|
|
|
n = datasz / sizeof (EFI_MEMORY_TYPE_INFORMATION);
|
|
for (i = 0; i < n && ti[i].NumberOfPages != 0; i++) {
|
|
printf("\t%23s pages: %u", efi_memory_type(ti[i].Type),
|
|
ti[i].NumberOfPages);
|
|
if (pager_output("\n"))
|
|
return (CMD_WARN);
|
|
}
|
|
|
|
return (CMD_OK);
|
|
}
|
|
|
|
/*
|
|
* Print FreeBSD variables.
|
|
* We have LoaderPath and LoaderDev as CHAR16 strings.
|
|
*/
|
|
static int
|
|
efi_print_freebsd(const CHAR16 *varnamearg, uint8_t *data,
|
|
UINTN datasz __unused)
|
|
{
|
|
int rv = -1;
|
|
char *var = NULL;
|
|
|
|
if (ucs2_to_utf8(varnamearg, &var) != 0)
|
|
return (CMD_ERROR);
|
|
|
|
if (strcmp("LoaderPath", var) == 0 ||
|
|
strcmp("LoaderDev", var) == 0) {
|
|
printf(" = ");
|
|
printf("%S", (CHAR16 *)data);
|
|
|
|
if (pager_output("\n"))
|
|
rv = CMD_WARN;
|
|
else
|
|
rv = CMD_OK;
|
|
}
|
|
|
|
free(var);
|
|
return (rv);
|
|
}
|
|
|
|
/* Print global variables. */
|
|
static int
|
|
efi_print_global(const CHAR16 *varnamearg, uint8_t *data, UINTN datasz)
|
|
{
|
|
int rv = -1;
|
|
char *var = NULL;
|
|
|
|
if (ucs2_to_utf8(varnamearg, &var) != 0)
|
|
return (CMD_ERROR);
|
|
|
|
if (strcmp("AuditMode", var) == 0) {
|
|
printf(" = ");
|
|
printf("0x%x", *data); /* 8-bit int */
|
|
goto done;
|
|
}
|
|
|
|
if (strcmp("BootOptionSupport", var) == 0) {
|
|
printf(" = ");
|
|
printf("0x%x", *((uint32_t *)data)); /* UINT32 */
|
|
goto done;
|
|
}
|
|
|
|
if (strcmp("BootCurrent", var) == 0 ||
|
|
strcmp("BootNext", var) == 0 ||
|
|
strcmp("Timeout", var) == 0) {
|
|
printf(" = ");
|
|
printf("%u", *((uint16_t *)data)); /* UINT16 */
|
|
goto done;
|
|
}
|
|
|
|
if (strcmp("BootOrder", var) == 0 ||
|
|
strcmp("DriverOrder", var) == 0) {
|
|
UINTN i;
|
|
UINT16 *u16 = (UINT16 *)data;
|
|
|
|
printf(" =");
|
|
for (i = 0; i < datasz / sizeof (UINT16); i++)
|
|
printf(" %u", u16[i]);
|
|
goto done;
|
|
}
|
|
if (strncmp("Boot", var, 4) == 0 ||
|
|
strncmp("Driver", var, 5) == 0 ||
|
|
strncmp("SysPrep", var, 7) == 0 ||
|
|
strncmp("OsRecovery", var, 10) == 0) {
|
|
UINT16 filepathlistlen;
|
|
CHAR16 *text;
|
|
int desclen;
|
|
EFI_DEVICE_PATH *dp;
|
|
|
|
data += sizeof(UINT32);
|
|
filepathlistlen = *(uint16_t *)data;
|
|
data += sizeof (UINT16);
|
|
text = (CHAR16 *)data;
|
|
|
|
for (desclen = 0; text[desclen] != 0; desclen++)
|
|
;
|
|
if (desclen != 0) {
|
|
/* Add terminating zero and we have CHAR16. */
|
|
desclen = (desclen + 1) * 2;
|
|
}
|
|
|
|
printf(" = ");
|
|
printf("%S", text);
|
|
if (filepathlistlen != 0) {
|
|
/* Output pathname from new line. */
|
|
if (pager_output("\n")) {
|
|
rv = CMD_WARN;
|
|
goto done;
|
|
}
|
|
dp = malloc(filepathlistlen);
|
|
if (dp == NULL)
|
|
goto done;
|
|
|
|
memcpy(dp, data + desclen, filepathlistlen);
|
|
text = efi_devpath_name(dp);
|
|
if (text != NULL) {
|
|
printf("\t%S", text);
|
|
efi_free_devpath_name(text);
|
|
}
|
|
free(dp);
|
|
}
|
|
goto done;
|
|
}
|
|
|
|
if (strcmp("ConIn", var) == 0 ||
|
|
strcmp("ConInDev", var) == 0 ||
|
|
strcmp("ConOut", var) == 0 ||
|
|
strcmp("ConOutDev", var) == 0 ||
|
|
strcmp("ErrOut", var) == 0 ||
|
|
strcmp("ErrOutDev", var) == 0) {
|
|
CHAR16 *text;
|
|
|
|
printf(" = ");
|
|
text = efi_devpath_name((EFI_DEVICE_PATH *)data);
|
|
if (text != NULL) {
|
|
printf("%S", text);
|
|
efi_free_devpath_name(text);
|
|
}
|
|
goto done;
|
|
}
|
|
|
|
if (strcmp("PlatformLang", var) == 0 ||
|
|
strcmp("PlatformLangCodes", var) == 0 ||
|
|
strcmp("LangCodes", var) == 0 ||
|
|
strcmp("Lang", var) == 0) {
|
|
printf(" = ");
|
|
printf("%s", data); /* ASCII string */
|
|
goto done;
|
|
}
|
|
|
|
/*
|
|
* Feature bitmap from firmware to OS.
|
|
* Older UEFI provides UINT32, newer UINT64.
|
|
*/
|
|
if (strcmp("OsIndicationsSupported", var) == 0) {
|
|
printf(" = ");
|
|
if (datasz == 4)
|
|
printf("0x%x", *((uint32_t *)data));
|
|
else
|
|
printf("0x%jx", *((uint64_t *)data));
|
|
goto done;
|
|
}
|
|
|
|
/* Fallback for anything else. */
|
|
rv = efi_print_other_value(data, datasz);
|
|
done:
|
|
if (rv == -1) {
|
|
if (pager_output("\n"))
|
|
rv = CMD_WARN;
|
|
else
|
|
rv = CMD_OK;
|
|
}
|
|
free(var);
|
|
return (rv);
|
|
}
|
|
|
|
static void
|
|
efi_print_var_attr(UINT32 attr)
|
|
{
|
|
bool comma = false;
|
|
|
|
if (attr & EFI_VARIABLE_NON_VOLATILE) {
|
|
printf("NV");
|
|
comma = true;
|
|
}
|
|
if (attr & EFI_VARIABLE_BOOTSERVICE_ACCESS) {
|
|
if (comma == true)
|
|
printf(",");
|
|
printf("BS");
|
|
comma = true;
|
|
}
|
|
if (attr & EFI_VARIABLE_RUNTIME_ACCESS) {
|
|
if (comma == true)
|
|
printf(",");
|
|
printf("RS");
|
|
comma = true;
|
|
}
|
|
if (attr & EFI_VARIABLE_HARDWARE_ERROR_RECORD) {
|
|
if (comma == true)
|
|
printf(",");
|
|
printf("HR");
|
|
comma = true;
|
|
}
|
|
if (attr & EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS) {
|
|
if (comma == true)
|
|
printf(",");
|
|
printf("AT");
|
|
comma = true;
|
|
}
|
|
}
|
|
|
|
static int
|
|
efi_print_var(CHAR16 *varnamearg, EFI_GUID *matchguid, int lflag)
|
|
{
|
|
UINTN datasz;
|
|
EFI_STATUS status;
|
|
UINT32 attr;
|
|
char *str;
|
|
uint8_t *data;
|
|
int rv = CMD_OK;
|
|
|
|
str = NULL;
|
|
datasz = 0;
|
|
status = RS->GetVariable(varnamearg, matchguid, &attr, &datasz, NULL);
|
|
if (status != EFI_BUFFER_TOO_SMALL) {
|
|
printf("Can't get the variable: error %#lx\n",
|
|
EFI_ERROR_CODE(status));
|
|
return (CMD_ERROR);
|
|
}
|
|
data = malloc(datasz);
|
|
if (data == NULL) {
|
|
printf("Out of memory\n");
|
|
return (CMD_ERROR);
|
|
}
|
|
|
|
status = RS->GetVariable(varnamearg, matchguid, &attr, &datasz, data);
|
|
if (status != EFI_SUCCESS) {
|
|
printf("Can't get the variable: error %#lx\n",
|
|
EFI_ERROR_CODE(status));
|
|
free(data);
|
|
return (CMD_ERROR);
|
|
}
|
|
|
|
if (efi_guid_to_name(matchguid, &str) == false) {
|
|
rv = CMD_ERROR;
|
|
goto done;
|
|
}
|
|
printf("%s ", str);
|
|
efi_print_var_attr(attr);
|
|
printf(" %S", varnamearg);
|
|
|
|
if (lflag == 0) {
|
|
if (strcmp(str, "global") == 0)
|
|
rv = efi_print_global(varnamearg, data, datasz);
|
|
else if (strcmp(str, "freebsd") == 0)
|
|
rv = efi_print_freebsd(varnamearg, data, datasz);
|
|
else if (strcmp(str,
|
|
EFI_MEMORY_TYPE_INFORMATION_VARIABLE_NAME) == 0)
|
|
rv = efi_print_mem_type(varnamearg, data, datasz);
|
|
else if (strcmp(str,
|
|
"47c7b227-c42a-11d2-8e57-00a0c969723b") == 0)
|
|
rv = efi_print_shell_str(varnamearg, data, datasz);
|
|
else if (strcmp(str, MTC_VARIABLE_NAME) == 0) {
|
|
printf(" = ");
|
|
printf("%u", *((uint32_t *)data)); /* UINT32 */
|
|
rv = CMD_OK;
|
|
if (pager_output("\n"))
|
|
rv = CMD_WARN;
|
|
} else
|
|
rv = efi_print_other_value(data, datasz);
|
|
} else if (pager_output("\n"))
|
|
rv = CMD_WARN;
|
|
|
|
done:
|
|
free(str);
|
|
free(data);
|
|
return (rv);
|
|
}
|
|
|
|
static int
|
|
command_efi_show(int argc, char *argv[])
|
|
{
|
|
/*
|
|
* efi-show [-a]
|
|
* print all the env
|
|
* efi-show -g UUID
|
|
* print all the env vars tagged with UUID
|
|
* efi-show -v var
|
|
* search all the env vars and print the ones matching var
|
|
* efi-show -g UUID -v var
|
|
* efi-show UUID var
|
|
* print all the env vars that match UUID and var
|
|
*/
|
|
/* NB: We assume EFI_GUID is the same as uuid_t */
|
|
int aflag = 0, gflag = 0, lflag = 0, vflag = 0;
|
|
int ch, rv;
|
|
unsigned i;
|
|
EFI_STATUS status;
|
|
EFI_GUID varguid = ZERO_GUID;
|
|
EFI_GUID matchguid = ZERO_GUID;
|
|
CHAR16 *varname;
|
|
CHAR16 *newnm;
|
|
CHAR16 varnamearg[128];
|
|
UINTN varalloc;
|
|
UINTN varsz;
|
|
|
|
optind = 1;
|
|
optreset = 1;
|
|
opterr = 1;
|
|
|
|
while ((ch = getopt(argc, argv, "ag:lv:")) != -1) {
|
|
switch (ch) {
|
|
case 'a':
|
|
aflag = 1;
|
|
break;
|
|
case 'g':
|
|
gflag = 1;
|
|
if (efi_name_to_guid(optarg, &matchguid) == false) {
|
|
printf("uuid %s could not be parsed\n", optarg);
|
|
return (CMD_ERROR);
|
|
}
|
|
break;
|
|
case 'l':
|
|
lflag = 1;
|
|
break;
|
|
case 'v':
|
|
vflag = 1;
|
|
if (strlen(optarg) >= nitems(varnamearg)) {
|
|
printf("Variable %s is longer than %zu "
|
|
"characters\n", optarg, nitems(varnamearg));
|
|
return (CMD_ERROR);
|
|
}
|
|
cpy8to16(optarg, varnamearg, nitems(varnamearg));
|
|
break;
|
|
default:
|
|
return (CMD_ERROR);
|
|
}
|
|
}
|
|
|
|
if (argc == 1) /* default is -a */
|
|
aflag = 1;
|
|
|
|
if (aflag && (gflag || vflag)) {
|
|
printf("-a isn't compatible with -g or -v\n");
|
|
return (CMD_ERROR);
|
|
}
|
|
|
|
if (aflag && optind < argc) {
|
|
printf("-a doesn't take any args\n");
|
|
return (CMD_ERROR);
|
|
}
|
|
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
pager_open();
|
|
if (vflag && gflag) {
|
|
rv = efi_print_var(varnamearg, &matchguid, lflag);
|
|
if (rv == CMD_WARN)
|
|
rv = CMD_OK;
|
|
pager_close();
|
|
return (rv);
|
|
}
|
|
|
|
if (argc == 2) {
|
|
optarg = argv[0];
|
|
if (strlen(optarg) >= nitems(varnamearg)) {
|
|
printf("Variable %s is longer than %zu characters\n",
|
|
optarg, nitems(varnamearg));
|
|
pager_close();
|
|
return (CMD_ERROR);
|
|
}
|
|
for (i = 0; i < strlen(optarg); i++)
|
|
varnamearg[i] = optarg[i];
|
|
varnamearg[i] = 0;
|
|
optarg = argv[1];
|
|
if (efi_name_to_guid(optarg, &matchguid) == false) {
|
|
printf("uuid %s could not be parsed\n", optarg);
|
|
pager_close();
|
|
return (CMD_ERROR);
|
|
}
|
|
rv = efi_print_var(varnamearg, &matchguid, lflag);
|
|
if (rv == CMD_WARN)
|
|
rv = CMD_OK;
|
|
pager_close();
|
|
return (rv);
|
|
}
|
|
|
|
if (argc > 0) {
|
|
printf("Too many args: %d\n", argc);
|
|
pager_close();
|
|
return (CMD_ERROR);
|
|
}
|
|
|
|
/*
|
|
* Initiate the search -- note the standard takes pain
|
|
* to specify the initial call must be a poiner to a NULL
|
|
* character.
|
|
*/
|
|
varalloc = 1024;
|
|
varname = malloc(varalloc);
|
|
if (varname == NULL) {
|
|
printf("Can't allocate memory to get variables\n");
|
|
pager_close();
|
|
return (CMD_ERROR);
|
|
}
|
|
varname[0] = 0;
|
|
while (1) {
|
|
varsz = varalloc;
|
|
status = RS->GetNextVariableName(&varsz, varname, &varguid);
|
|
if (status == EFI_BUFFER_TOO_SMALL) {
|
|
varalloc = varsz;
|
|
newnm = realloc(varname, varalloc);
|
|
if (newnm == NULL) {
|
|
printf("Can't allocate memory to get "
|
|
"variables\n");
|
|
rv = CMD_ERROR;
|
|
break;
|
|
}
|
|
varname = newnm;
|
|
continue; /* Try again with bigger buffer */
|
|
}
|
|
if (status == EFI_NOT_FOUND) {
|
|
rv = CMD_OK;
|
|
break;
|
|
}
|
|
if (status != EFI_SUCCESS) {
|
|
rv = CMD_ERROR;
|
|
break;
|
|
}
|
|
|
|
if (aflag) {
|
|
rv = efi_print_var(varname, &varguid, lflag);
|
|
if (rv != CMD_OK) {
|
|
if (rv == CMD_WARN)
|
|
rv = CMD_OK;
|
|
break;
|
|
}
|
|
continue;
|
|
}
|
|
if (vflag) {
|
|
if (wcscmp(varnamearg, varname) == 0) {
|
|
rv = efi_print_var(varname, &varguid, lflag);
|
|
if (rv != CMD_OK) {
|
|
if (rv == CMD_WARN)
|
|
rv = CMD_OK;
|
|
break;
|
|
}
|
|
continue;
|
|
}
|
|
}
|
|
if (gflag) {
|
|
rv = uuid_equal((uuid_t *)&varguid,
|
|
(uuid_t *)&matchguid, NULL);
|
|
if (rv != 0) {
|
|
rv = efi_print_var(varname, &varguid, lflag);
|
|
if (rv != CMD_OK) {
|
|
if (rv == CMD_WARN)
|
|
rv = CMD_OK;
|
|
break;
|
|
}
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
free(varname);
|
|
pager_close();
|
|
|
|
return (rv);
|
|
}
|
|
|
|
COMMAND_SET(efiset, "efi-set", "set EFI variables", command_efi_set);
|
|
|
|
static int
|
|
command_efi_set(int argc, char *argv[])
|
|
{
|
|
char *uuid, *var, *val;
|
|
CHAR16 wvar[128];
|
|
EFI_GUID guid;
|
|
#if defined(ENABLE_UPDATES)
|
|
EFI_STATUS err;
|
|
#endif
|
|
|
|
if (argc != 4) {
|
|
printf("efi-set uuid var new-value\n");
|
|
return (CMD_ERROR);
|
|
}
|
|
uuid = argv[1];
|
|
var = argv[2];
|
|
val = argv[3];
|
|
if (efi_name_to_guid(uuid, &guid) == false) {
|
|
printf("Invalid uuid %s\n", uuid);
|
|
return (CMD_ERROR);
|
|
}
|
|
cpy8to16(var, wvar, nitems(wvar));
|
|
#if defined(ENABLE_UPDATES)
|
|
err = RS->SetVariable(wvar, &guid, EFI_VARIABLE_NON_VOLATILE |
|
|
EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_BOOTSERVICE_ACCESS,
|
|
strlen(val) + 1, val);
|
|
if (EFI_ERROR(err)) {
|
|
printf("Failed to set variable: error %lu\n",
|
|
EFI_ERROR_CODE(err));
|
|
return (CMD_ERROR);
|
|
}
|
|
#else
|
|
printf("would set %s %s = %s\n", uuid, var, val);
|
|
#endif
|
|
return (CMD_OK);
|
|
}
|
|
|
|
COMMAND_SET(efiunset, "efi-unset", "delete / unset EFI variables", command_efi_unset);
|
|
|
|
static int
|
|
command_efi_unset(int argc, char *argv[])
|
|
{
|
|
char *uuid, *var;
|
|
CHAR16 wvar[128];
|
|
EFI_GUID guid;
|
|
#if defined(ENABLE_UPDATES)
|
|
EFI_STATUS err;
|
|
#endif
|
|
|
|
if (argc != 3) {
|
|
printf("efi-unset uuid var\n");
|
|
return (CMD_ERROR);
|
|
}
|
|
uuid = argv[1];
|
|
var = argv[2];
|
|
if (efi_name_to_guid(uuid, &guid) == false) {
|
|
printf("Invalid uuid %s\n", uuid);
|
|
return (CMD_ERROR);
|
|
}
|
|
cpy8to16(var, wvar, nitems(wvar));
|
|
#if defined(ENABLE_UPDATES)
|
|
err = RS->SetVariable(wvar, &guid, 0, 0, NULL);
|
|
if (EFI_ERROR(err)) {
|
|
printf("Failed to unset variable: error %lu\n",
|
|
EFI_ERROR_CODE(err));
|
|
return (CMD_ERROR);
|
|
}
|
|
#else
|
|
printf("would unset %s %s \n", uuid, var);
|
|
#endif
|
|
return (CMD_OK);
|
|
}
|